32490332 has 60 divisors (see below), whose sum is σ = 70585200. Its totient is φ = 13039488.

The previous prime is 32490331. The next prime is 32490347. The reversal of 32490332 is 23309423.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32490331) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 163169 + ... + 163367.

It is an arithmetic number, because the mean of its divisors is an integer number (1176420).

Almost surely, 2^32490332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32490332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35292600).

32490332 is an abundant number, since it is smaller than the sum of its proper divisors (38094868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32490332 is a wasteful number, since it uses less digits than its factorization.

32490332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 32490332 is about 5700.0291227326. The cubic root of 32490332 is about 319.0935676757.

Adding to 32490332 its reverse (23309423), we get a palindrome (55799755).

The spelling of 32490332 in words is "thirty-two million, four hundred ninety thousand, three hundred thirty-two".